Have you ever wondered why some telescopes are launched into space while others are built on remote mountain tops? What is actually the best for astronomy? Here we provide a ringside view of the fight for the elusive photons from deep space - is it a battle of the telescope giants?

A time-lapse taken from the front of the International Space Station as it orbits our planet at night. This movie begins over the Pacific Ocean and continues over North and South America before entering daylight near Antarctica. Visible cities, countries and landmarks include (in order) Vancouver Is...

American astrophysicist and cosmologist Neil deGrasse Tyson wrote and narrated a YouTube piece for Minute Physics called A Brief History of Everything, with the scientist explaining and condensing the epic 16 billion year history of the universe into a succinct eight minute video. While the basic co

ESA's Mars500 crew members Diego Urbina and Romain Charles recorded 15 video diaries from all phases of their simulated mission to Mars, plus hundreds of photos and other video clips. Most of these are available on ESA's Mars500 website (www.esa.int/Mars500), but here is a compilation of their YouTu...

Twenty-seven years ago, Sally Ride became the first American woman in
space on Jun 18, 1983. She accomplished this historic milestone when
she flew aboard Space Shuttle Challenger as a mission specialist for
the six-day STS-7 mission. Ride, a southern California native, was also
a mission specia...

International Space Station Commander Dan Burbank captured spectacular imagery of Comet Lovejoy as seen from about 240 miles above the Earth's horizon on Wednesday, Dec. 21. Today Burbank described seeing the comet two nights ago as "the most amazing thing I have ever seen in space," in an intervie...